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US 7,629,112 B1Granted
Color photographic materials with yellow minimum density colorants
AssigneeEastman Kodak Company
InventorsPaul L. Zengerle, Drake M. Michno, James H. Reynolds, Steven P. Szatynski, John W. Harder
Life of this patent
Estimating the term…
Abstract
Silver halide color photographic elements having multiple color imaging layers contain a permanent, pre-formed yellow colorant that is present in an amount to provide a status M blue density greater than 0.003 per mg/m2. This colorant provides minimum density at lower cost and can be incorporated with minimal or no organic solvents and thus enable a reduced organic load that may lead to improved film physical properties.
Claims16
A silver halide color photographic element comprising a support having thereon at least one blue light sensitive silver halide layer, at least one green light sensitive silver halide layer, and at least one red light sensitive silver halide layer,
- said color photographic element further comprising within at least one layer, a permanent, pre-formed yellow colorant that is present in an amount to provide a status M blue density greater than 0.003 per mg/m2,
- wherein said yellow colorant is a pigment that is represented by one of the following Structures (I), (II), and (III):
- wherein R1, R2, R3, and R4 each independently represent substituents,
- wherein R5, R6, R7, and R8 each independently represent substituents, and
- wherein R9, R10, R11, and R12 each independently represent substituents, or
- said yellow colorant is a yellow dye that is represented by either Structure (IV) or (V):
- wherein R13 represents an alkyl, cycloalkyl, or aryl group,
- R14 represents an alkoxy, aryloxy, or NHR18NR18R19 group, or R14 represents the atom necessary to complete a 6-membered ring fused to the benzene ring,
- R15 and R16 independently are alkyl, cycloalkyl, or aryl groups, or R15 and R16 can be joined together to form, along with the nitrogen to which they are attached, a 5- or 6-membered heterocyclic ring,
- R17 represents hydrogen or a halogen, carbamoyl, alkoxycarbonyl, acyl, alkyl, cycloalkyl, aryl, or dialkylamino group,
- R18 and R19 are independently alkyl, cycloalkyl, or aryl groups, or R18 and R19 may be joined together to form, along with the nitrogen to which they are attached, a 5- or 6-membered heterocyclic ring, and
- Z represents hydrogen or the atoms necessary to complete a 5- or 6-membered ring fused to the benzene ring,
- wherein R represents an alkyl or aryl group,
- R20 and R21 are independently hydrogen, or alkyl or aryl groups with the proviso that only one of R20 and R21 may be hydrogen at the same time, or R20 and R21 may be combined together with the nitrogen to which they are attached to form a heterocyclic ring system,
- R22 is and alkyl or aryl groups,
- n represents 0 or 1, and Z1 represents the atoms necessary to complete a 5- or 6-membered heterocyclic ring.
13 more elements
A silver halide color photographic element comprising a support having thereon at least one blue light sensitive silver halide layer, at least one green light sensitive silver halide layer, and at least one red light sensitive silver halide layer,
- said color photographic element further comprising within at least one layer, a permanent, pre-formed yellow colorant that is present in an amount to provide a status M blue density greater than 0.003 per mg/m2, wherein said yellow colorant is a one or more of the following pigments:
- C. I. Pigment Orange 31, C. I. Pigment Orange 43, C. I. Pigment Yellow 3, C. I. Pigment Yellow 12, C. I. Pigment Yellow 13, C. I. Pigment Yellow 14, C. I. Pigment Yellow 15, C. I. Pigment Yellow 17, C. I. Pigment Yellow 65, C. I. Pigment Yellow 73, C. I. Pigment Yellow 74, C. I. Pigment Yellow 83, C. I. Pigment Yellow 93, C. I. Pigment Yellow 94, C. I. Pigment Yellow 97, C. I. Pigment Yellow 98, C. I. Pigment Yellow 120, C. I. Pigment Yellow 138, C. I. Pigment Yellow 151, C. I. Pigment Yellow 154, C. I. Pigment Yellow 155, C. I. Pigment Yellow 156, C. I. Pigment Yellow 175, C. I. Pigment Yellow 180, C. I. Pigment Yellow 181, C. I. Pigment Yellow 185, and C. I. Pigment Yellow 194.
A silver halide color photographic element comprising a support having thereon, in order:
- optionally, an antihalation layer,
- one or more red light sensitive silver halide layers,
- one or more green light sensitive silver halide layers, and
- one or more blue light sensitive silver halide layers,
- said color photographic element further comprising within at least one layer, a permanent, preformed yellow colorant that is present only in either said antihalation layer if present, or in a red light or green light sensitive silver halide layer, in an amount of from about 5 to about 200 mg/m2, and said colorant has an average particle size of from about 0.05 to about 1 μm, and said yellow colorant is a pigment that is represented by one of the following Structures (I), (II), and (III):
- wherein R1, R2, R3, and R4 each independently represent substituents,
- wherein R5, R6, R7, and R8 each independently represent substituents, and
- wherein R9, R10, R11, and R12 each independently represent substituents, or
- said yellow colorant is a yellow dye that is represented by either Structure (IV) or (V):
- wherein R13 represents an alkyl, cycloalkyl, or aryl group,
- R14 represents an alkoxy, aryloxy, or NHR18NR18SR19 group, or R14 represents the atom necessary to complete a 6-membered ring fused to the benzene ring,
- R15 and R16 independently are alkyl, cycloalkyl, or aryl groups, or R15 and R16 can be joined together to form, along with the nitrogen to which they are attached, a 5- or 6-membered heterocyclic ring,
- R17 represents hydrogen or a halogen, carbamoyl, alkoxycarbonyl, acyl, alkyl, cycloalkyl, aryl, or dialkylamino group,
- R18 and R19 are independently alkyl, cycloalkyl, or aryl groups, or R18 and R19 may be joined together to form, along with the nitrogen to which they are attached, a 5- or 6-membered heterocyclic ring, and
- Z represents hydrogen or the atoms necessary to complete a 5- or 6-membered ring fused to the benzene ring,
- wherein R represents an alkyl or aryl group,
- R20 and R21 are independently hydrogen, or alkyl or aryl groups with the proviso that only one of R20 and R21 may be hydrogen at the same time, or R20 and R21 may be combined together with the nitrogen to which they are attached to form a heterocyclic ring system,
- R22 is and alkyl or aryl groups,
- n represents 0 or 1, and Z1 represents the atoms necessary to complete a 5- or 6-membered heterocyclic ring.
16 more elements
A method for providing a color negative image comprising:
- A) imagewise exposing a silver halide color photographic element comprising a support having thereon at least one blue light sensitive silver halide layer, at least one green light sensitive silver halide layer, and at least one red light sensitive silver halide layer,
- said color photographic element further comprising within at least one layer, a permanent, pre-formed yellow colorant that is present in an amount to provide a status M blue density greater than 0.003 per mg/m2, to provide a latent color image in the imaged element, and
- B) contacting said imaged element with a color developing agent to provide a color negative image,
- wherein said yellow colorant is a pigment that is represented by one of the following Structures (I), (II), and (III):
- wherein R1, R2, R3, and R4 each independently represent substituents,
- wherein R5, R6, R7, and R8 each independently represent substituents, and
- wherein R9, R10, R11, and R12 each independently represent substituents, or
- said yellow colorant is a yellow dye that is represented by either Structure (IV) or (V):
- wherein R13 represents an alkyl, cycloalkyl, or aryl group,
- R14 represents an alkoxy, aryloxy, or NHR18NR18R19 group, or R14 represents the atom necessary to complete a 6-membered ring fused to the benzene ring,
- R15 and R16 independently are alkyl, cycloalkyl, or aryl groups, or R15 and R16 can be joined together to form, along with the nitrogen to which they are attached, a 5- or 6-membered heterocyclic ring,
- R17 represents hydrogen or a halogen, carbamoyl, alkoxycarbonyl, acyl, alkyl, cycloalkyl, aryl, or dialkylamino group,
- R18 and R19 are independently alkyl, cycloalkyl, or aryl groups, or R18 and R19 may be joined together to form, along with the nitrogen to which they are attached, a 5- or 6-membered heterocyclic ring, and
- Z represents hydrogen or the atoms necessary to complete a 5- or 6-membered ring fused to the benzene ring,
- wherein R represents an alkyl or aryl group,
- R20 and R21 are independently hydrogen, or alkyl or aryl groups with the proviso that only one of R20 and R21 may be hydrogen at the same time, or R20 and R21 may be combined together with the nitrogen to which they are attached to form a heterocyclic ring system,
- R22 is and alkyl or aryl groups,
- n represents 0 or 1, and Z1 represents the atoms necessary to complete a 5- or 6-membered heterocyclic ring.
15 more elements
Dependencies are inferred from the claim text.